* Retrofit kits (optionally with step rocker) would probably be an instant sales hit, as they fit all 4-sided bottom bracket axles.
From: RareHistoricalPhotos - facebook
8.) Hand guards
In order to avoid common microtraumas in the wrist, a cylindrical, elastomeric pipe plug connection could be embedded in the steering handles or their transitions to the steering bracket in order to mitigate impacts. This stiff-elastic bridge could be available differently depending on the weight of a person or recessed differently deep.
9.) Laboriously storing a RAD was yesterday ...
Back-friendly side effect of the newly conceived bicycle: the rear wheel can optionally be given an effective shock absorption with 12 conical fiberglass arch springs or steel leaf springs instead of conventional spokes. Because other common shock absorbers for the front, rear or on the seat post make a bike more expensive. With this approach, due to the given center of gravity close to the rear wheel, damping is sufficient (prams can also be equipped with such wheels in principle).
10.) Long finger lock
With a long steel cable lock that can be pulled out of the frame, the bike can be attached and secured against theft. A second quick immobilizer would be just as practical and practical.
It should be possible to secure the steel cable lock, battery, storage basket and solar roof with just one key. It would be even better to have a handheld transmitter lock - which, as is the case with cars for a long time, locks everything centrally.
Conclusion: As an innovation bike, this fahrRAD would not be "just a good weather bike" and would soon be popular on the market. It should - through the increased security and multi-range capability - enrich the bicycle industry positively! The innovations can be used individually.
* A cargo bike e.g. gives the deliverer work and is useful against urban smog and traffic jams.
* These fahrRAD additions would help to further reduce traffic and climate.
* This bicycle could also be constructed as a tandem, TAXI or family carriage.
Concrete frame designs arise depending on the type of use and personal design creation by a fahrRAD manufacturer.
* Create PV films e.g. Alwitra-Evalon cSi ®, FirstSolar®, Nanosolar ® - or Heliatek ®.
** USB plog, navigation system integration and a hands-free system, combined with the charge level, mileage and speedometer display, in a foldable and removable display (in addition to a wide rear view mirror) in the roof, would also be good additional options.
Li / Io batteries already require the new EN 50604-1 standard!
Compare to the pedal lever drive >> www.freepatentsonline.com/DE4329814.html.
A step description - from testing (ISO 4210) to sales and trade - is not part of this study.
Locally adapted fahrRAD productions could also be realized by emerging countries! In any case, all 10 innovations are available free of charge. A cheap alternative mobility, with the avoidance of fossil and road construction disadvantages, would certainly be welcomed and necessary there.
I am available for feedback, criticism and technical suggestions: >> firstname.lastname@example.org